<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

      <div class="title-container">
        <h3 class="title">大型商城信息系统</h3>
      </div>

      <el-form-item prop="userId">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="userId"
          v-model="loginForm.userId"
          placeholder="账户"
          name="userId"
          type="text"
          tabindex="1"
          auto-complete="on"
          clearable
          maxlength="20"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
          clearable
          maxlength="20"
        />

        <!--  **_**  @keyup.enter.native   键盘回车触发事件-->
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

        <el-form-item prop="email">
        <span class="svg-container">
          <svg-icon icon-class="email" />
        </span>
          <el-input
            ref="email"
            v-model="loginForm.email"
            placeholder="邮箱(登陆时不需要，注册时可选择输入或不输入)"
            name="email"
            type="text"
            tabindex="2"
            auto-complete="on"
            clearable
            maxlength="20"
          />

        </el-form-item>



      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>

      <div class="tips">
        <span style="margin-right:20px;">游客通用账户: 1</span>
        <span> 密码: 123456</span>
        <el-button type="primary" size="mini" round style="width:20%;margin-left: 30%;" @click="dialogOpen">注册</el-button>
      </div>
    </el-form>

  </div>
</template>

<script>

import {registered} from "@/api/user";

export default {
  name: 'Login',
  data() {
    // 自定义验证
    const validateUsername = (rule, value, callback) => {
      if (value.length < 1) {
        callback(new Error('账户不能为空'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('请输入不少于6位数密码'))
      } else {
        callback()
      }
    }

    const email = (rule, value, callback) => {
      const regEmail = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
      if (!value) {
      } else if (!regEmail.test(value)) {
        return callback(new Error("请输入有效的邮箱地址"));
      }
      callback();
    };

    return {
      loginForm: {
        userId: '',
        password: '',
        email:''
      },
      loginRules: {
        userId: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }],
        email:[{validator: email}]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined,
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    // 登录
    handleLogin() {
      this.loading = true
      this.$store.dispatch('user/login', this.loginForm).then(() => {
        this.$router.push({ path: '/' })
        this.loading = false
      }).catch(() => {
        this.loading = false
      })
    },
    // 注册
    dialogOpen(){
      try{
        registered({
          userId: this.loginForm.userId,
          password: this.loginForm.password,
          email:this.loginForm.email
        }).then(async response => {
          // 接受返回的data 数据
          const {data} = response
          await this.$alert('操作成功', '注册账户', {
            confirmButtonText: '确定',
          });
        }).catch(error => {
        })
      }catch{
      }
    },
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
